To ensure that you keep customers happy and present a professional image, make your auto-attendant easy to navigate. We’ve compiled some sample call center greeting scripts that can be used in different situations, whether your company has a small customer support team or a massive call center with hundreds of people.
Yes, you can make an email personalized, too. But voicemail is already much more personal than an email, and your level of customization should rise to meet that. Plus, if you’ve spoken with the contact in the past, there’s an even bigger opportunity to build on what you already know and cater the message to them.

The difference between a cold voicemail and a warm voicemail is research. Research creates a distinction compelling a prospect to return your call over the countless others in their voice mailbox.
I like to say my phone number very early so the person can hear it again quickly by starting the message over and does not have to listen to your entire message again to hear the number. But do repeat your telephone number at the end of the message at least once and speak very s-l-o-w-l-y so the person can write it down as they listen. If you don't get a response to your first voicemail, don't hesitate to record a similar message once a week for two or three weeks. This sounds a bit excessive, but my experience has been that if there is even the slightest chance of meeting someone now or even in the near future, this kind of message will get their attention.